Across 3 review studies, all reported beneficial effects of Lactobacillus rhamnosus on gut health, with moderate effect sizes in two studies and a small effect in one. The evidence is derived entirely from animal and aquaculture populations, with no human-specific data. Study durations and doses were not consistently reported.
Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. All studies are reviews without primary data, and none reported statistical significance or sample sizes. Available evidence is overwhelmingly positive — clinical literature in this area is subject to publication bias (null-result studies are less likely to be published or indexed). Results are from non-human populations, limiting generalizability to human gut health.
They increase beneficial gut bacteria and improve the digestion and integrity of the intestine.
Their application in functional foods contributes to improved gut health and reduced risk of foodborne illnesses.
Several studies have shown that the addition of algae, along with probiotics, can influence the microbiota, and improve gut health and overall yield in fish, shrimp, and mussels aquaculture.